Well-sinterable Y3Al5O12 powder from carbonate precursor

Ji Guang Li; Takayasu Ikegami; Jong Heun Lee; Toshiyuki Mori

doi:10.1557/JMR.2000.0217

Well-sinterable Y₃Al₅O₁₂ powder from carbonate precursor

Ji Guang Li, Takayasu Ikegami, Jong Heun Lee, Toshiyuki Mori

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

Carbonate precursors of Y₃Al₅O₁₂ (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.

Original language	English
Pages (from-to)	1514-1523
Number of pages	10
Journal	Journal of Materials Research
Volume	15
Issue number	7
DOIs	https://doi.org/10.1557/JMR.2000.0217
Publication status	Published - 2000 Jul
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "Carbonate precursors of Y3Al5O12 (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.",

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year = "2000",

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AU - Li, Ji Guang

AU - Ikegami, Takayasu

AU - Lee, Jong Heun

AU - Mori, Toshiyuki

PY - 2000/7

Y1 - 2000/7

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AB - Carbonate precursors of Y3Al5O12 (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.

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Well-sinterable Y₃Al₅O₁₂ powder from carbonate precursor

Abstract

ASJC Scopus subject areas

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